A train traveling at 126 km/h comes to a complete stop in 175 s after the brakes were engaged. (a) Convert this speed (126 km/h) into m/s.

(b)What is the acceleration of the train during this time interval? (You need to give your answer in m/s2)

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s. calculate eddy’s power rating

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.